Mesa 7i96 system planning-How Supported is Supported?
- Xnke
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31 Oct 2018 10:34 #119692
by Xnke
Replied by Xnke on topic Mesa 7i96 system planning-How Supported is Supported?
According to the data sheets I can find, it is supposed to be an incremental 8192ppr encoder with A/B/C out, and runs from a 5v supply.
It may have a junk encoder on it too in which case I'll have to replace it anyway.
If I have to replace it, I'll just replace it with something barely smart enough to do the job, I have only done a few encoder swaps and the brainier the encoder the harder the alignment.
It may have a junk encoder on it too in which case I'll have to replace it anyway.
If I have to replace it, I'll just replace it with something barely smart enough to do the job, I have only done a few encoder swaps and the brainier the encoder the harder the alignment.
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- andypugh
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31 Oct 2018 10:46 #119693
by andypugh
Replied by andypugh on topic Mesa 7i96 system planning-How Supported is Supported?
Does it have commutation output in addition to ABZ?
I think some of these encoders output a brief burst of serial on the ABZ for absolute position and commutation purposes.
For a spindle, if you don't mind a bit of a wiggle at power-up, the 8i20 and the bldc component should work. Though software commutation does put a bit of a limit on top speed.
I think some of these encoders output a brief burst of serial on the ABZ for absolute position and commutation purposes.
For a spindle, if you don't mind a bit of a wiggle at power-up, the 8i20 and the bldc component should work. Though software commutation does put a bit of a limit on top speed.
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- tommylight
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31 Oct 2018 11:08 #119697
by tommylight
Replied by tommylight on topic Mesa 7i96 system planning-How Supported is Supported?
I do have 3 of those Yaskawa motors with 8192 ppr encoders on them, they are proprietary type so no normal drive will work with them. They also have commutation signals on the encoders.
I did try to remove them but it is not easy, short of braking them.
It looks like i will have to use the original drives to do the translation, they do output 2000 ppr with index.
I did try to remove them but it is not easy, short of braking them.
It looks like i will have to use the original drives to do the translation, they do output 2000 ppr with index.
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31 Oct 2018 11:19 #119699
by andypugh
Replied by andypugh on topic Mesa 7i96 system planning-How Supported is Supported?
The STMBL drive has a module for the Yaskawa encoders.
I suppose that you could run that on an STM32 dev board (or even Arduino) board to translate to commutation and quadrature.
github.com/rene-dev/stmbl/blob/master/src/comps/yaskawa.c
I suppose that you could run that on an STM32 dev board (or even Arduino) board to translate to commutation and quadrature.
github.com/rene-dev/stmbl/blob/master/src/comps/yaskawa.c
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31 Oct 2018 11:50 #119703
by tommylight
Replied by tommylight on topic Mesa 7i96 system planning-How Supported is Supported?
Mine do not seem to be serial. They output signals of variable width on all three outputs, out of phase to each other.
Did not investigate any further.
Did not investigate any further.
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- Xnke
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31 Oct 2018 17:42 #119718
by Xnke
Replied by Xnke on topic Mesa 7i96 system planning-How Supported is Supported?
More than likely, the encoder will have three phases with commutation data signaled by a different pulse width, and position data signaled by the leading edge of the pulse.
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31 Oct 2018 20:48 #119726
by tommylight
Replied by tommylight on topic Mesa 7i96 system planning-How Supported is Supported?
Not on mine, they have separate commutation outputs. All the outputs are differential, two separate power supply wires for encoder and commutation.
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01 Nov 2018 02:16 #119744
by Xnke
Replied by Xnke on topic Mesa 7i96 system planning-How Supported is Supported?
What Encoder do you have on yours? Do you have the servo/encoder part numbers?
Mine are USAGED-09ML21 for the motor and UTOPH-81AVF for the encoder.
Mine are USAGED-09ML21 for the motor and UTOPH-81AVF for the encoder.
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05 Nov 2018 09:28 #119978
by tommylight
Replied by tommylight on topic Mesa 7i96 system planning-How Supported is Supported?
USAGED-09A22T with UTOPH-81AVF
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05 Apr 2019 13:48 #130339
by jools
Replied by jools on topic Mesa 7i96 system planning-How Supported is Supported?
Sorry to hi jack an old thread but I'm thinking of upgrading to the 7i96 and just wondered how you find it and if it has support from pncconf yet (or if this is planned). I couldn't find it on the pncconf drop down so can you adapt other mesa cards setting to make it work?
Jools
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